Attend the Whipple Lecture delivered by Thomas B. McCord at the AGU Fall Meeting 2002. Explore cutting-edge research and insights in Earth and space sciences presented by a distinguished scientist. Despite potential imperfections due to the age of the original file, this hour-long lecture offers valuable knowledge for those interested in geophysics and planetary science. Gain a deeper understanding of the field's advancements and challenges as discussed by a leading expert in the AGU community.